Dhillon Mandeep Sing, Bali Kamal, Prabhakar Sharad
Deptt of Orthopaedics PGIMER Chandigarh, India.
Muscles Ligaments Tendons J. 2012 Jun 17;2(1):38-43. Print 2012 Jan.
Mechanoreceptors in an intact Anterior Cruciate Ligament (ACL) contribute towards functional stability of the knee joint. Injury to the ACL not only causes mechanical instability, but also leads to a disturbance in the neuromuscular control of the injured knee due to loss or damage to mechanoreceptors. ACL reconstruction restores proprioceptive potential of the knee to some extent, but the results vary. Although the remnant ACL contains residual mechanoreceptors, the number and functionality of these receptors is dependent, to some extent, on the physical characteristics of the remnant and duration of injury. Remnants, especially that adherent to the PCL, may actually act as a possible source of reinnervation of the graft. These remnants are worth preserving during ACL reconstruction and can play an important role in restoration of proprioception of knee following ACL reconstruction.
完整的前交叉韧带（ACL）中的机械感受器有助于膝关节的功能稳定性。ACL损伤不仅会导致机械性不稳定，还会由于机械感受器的丧失或损伤而导致受伤膝关节的神经肌肉控制紊乱。ACL重建在一定程度上恢复了膝关节的本体感觉潜能，但结果各不相同。尽管残留的ACL含有残余的机械感受器，但这些感受器的数量和功能在一定程度上取决于残余部分的物理特性和损伤持续时间。残余部分，尤其是附着于后交叉韧带（PCL）的部分，实际上可能成为移植物再神经支配的一个潜在来源。这些残余部分在ACL重建过程中值得保留，并且在ACL重建后膝关节本体感觉的恢复中可以发挥重要作用。
